VAPOR-LIQUID PHASE-EQUILIBRIUM IN RANDOM MICROPOROUS MATRICES

Authors
FORD DM GLANDT ED
Citation
Dm. Ford et Ed. Glandt, VAPOR-LIQUID PHASE-EQUILIBRIUM IN RANDOM MICROPOROUS MATRICES, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 50(2), 1994, pp. 1280-1286
Citations number
23
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
50
Issue
2
Year of publication
1994
Part
A
Pages
1280 - 1286
Database
ISI
SICI code
1063-651X(1994)50:2<1280:VPIRMM>2.0.ZU;2-N
Abstract
The theory developed by Madden and Glandt [J. Stat. Phys. 51, 537 (198 8)] for fluids in disordered microporous matrices is extended. A pertu rbation theory approach is used to obtain the free energy of the confi ned fluid, with the interparticle potential as the perturbation variab le. The theory is combined with a mean-field approximation and applied to a system of square-well particles for which vapor-liquid coexisten ce envelopes are obtained. The effects of matrix density on the coexis tence properties are explored, and a comparison is done with previous experiment and lattice modeling.